Rotor



FIG. 1 is a top view of the rotor.

FIG. 2 is a front view of the rotor, the back view , the left side view, and the right side view being identical.

FIG. 3 is a bottom view of the rotor; and,

FIG. 4 is a perspective view of the rotor from the bottom. 

The ornamental design for “rotor,” as shown and described. 